摘要:
A switchable junction (600) having an intrinsic diode (634) formed with a voltage dependent resistor (640) is disclosed. The switchable junction comprises a first electrode (618), a second electrode (622), and a memristive matrix (620) configured to form an electrical interface (626) with the first electrode (618). The electrical interface has a programmable conductance. The voltage dependent resistor (640) is in electrical contact with the memristive matrix (620). The voltage dependent resistor is configured to form a rectifying diode interface (628) with the second electrode (622).
摘要:
Apparatus and methods related to memory resistors are provided. A feedback controller applies adjustment signals to a memristor. A non-volatile electrical resistance of the memristor is sensed by the feedback controller during the adjustment. The memristor is adjusted to particular values lying between first and second limiting values with minimal overshoot. Increased memristor service life, faster operation, lower power consumption, and higher operational integrity are achieved by the present teachings.
摘要:
Apparatus and methods related to memory resistors are provided. A feedback controller applies adjustment signals to a memristor. A non-volatile electrical resistance of the memristor is sensed by the feedback controller during the adjustment. The memristor is adjusted to particular values lying between first and second limiting values with minimal overshoot. Increased memristor service life, faster operation, lower power consumption, and higher operational integrity are achieved by the present teachings.
摘要:
A switchable junction (600) having an intrinsic diode (634) formed with a voltage dependent resistor (640) is disclosed. The switchable junction comprises a first electrode (618), a second electrode (622), and a memristive matrix (620) configured to form an electrical interface (626) with the first electrode (618). The electrical interface has a programmable conductance. The voltage dependent resistor (640) is in electrical contact with the memristive matrix (620). The voltage dependent resistor is configured to form a rectifying diode interface (628) with the second electrode (622).
摘要:
Circuitry is provided that closely emulates biological neural responses. Two astable multivibrator circuits (AMCs), each including a negative differential resistance device, are coupled in series-circuit relationship. Each AMC is characterized by a distinct voltage-dependant time constant. The circuitry exhibits oscillations in electrical current when subjected to a voltage equal to or greater than a threshold value. Various oscillating waveforms can be produced in accordance with voltages applied to the circuitry.
摘要:
A memcapacitor device includes a memcapacitive matrix interposed between a first electrode and a second electrode. The memcapacitive matrix includes deep level dopants having a first decay time constant and shallow level dopants having a second decay time constant. The second decay time constant is substantially shorter than the first decay time constant. The capacitance of the memcapacitor device depends upon an initial voltage applied across the memcapacitive matrix and a time dependent change in capacitance of the memcapacitor device depends upon the first decay time constant. A method for forming a memcapacitive device is also provided.
摘要:
Circuitry is provided that closely emulates biological neural responses. Two astable multivibrator circuits (AMCs), each including a negative differential resistance device, are coupled in series-circuit relationship. Each AMC is characterized by a distinct voltage-dependant time constant. The circuitry exhibits oscillations in electrical current when subjected to a voltage equal to or greater than a threshold value. Various oscillating waveforms can be produced in accordance with voltages applied to the circuitry.
摘要:
A nanoscale switching device provides enhanced thermal stability and endurance to switching cycles. The switching device has an active region disposed between electrodes and containing a switching material capable of carrying a species of dopants and transporting the dopants under an electrical field. At least one of the electrodes is formed of conductive material having a melting point greater than 1800° C.
摘要:
A memristive junction (400) can comprise a first electrode (102) and second electrode (104), with a memristive region (106) situated between them. The memristive region is configured to switch between two activation states via a switching voltage (118) applied between the electrodes. The activation state can be ascertained by application of a reading voltage between the first electrode and second electrode. The junction further comprises a rectifier region situated at an interface (420) between the first electrode and the memristive region, and comprising a layer (402) of temperature-responsive transition material that is substantially conductive at the switching voltage and substantially resistive at the reading voltage.
摘要:
A memristive junction (400) can comprise a first electrode (102) and second electrode (104), with a memristive region (106) situated between them. The memristive region is configured to switch between two activation states via a switching voltage (118) applied between the electrodes. The activation state can be ascertained by application of a reading voltage between the first electrode and second electrode. The junction further comprises a rectifier region situated at an interface (420) between the first electrode and the memristive region, and comprising a layer (402) of temperature-responsive transition material that is substantially conductive at the switching voltage and substantially resistive at the reading voltage.